Atypical Presentation of a Case of Solitary Fibrous Tumor of the Orbit

Abstract

Purpose: To describe a rare case of solitary fibrous tumor of the orbit in a child, clinically misdiagnosed as arterious hemangioma. Methods: A nine-year-old child presented a hard-elastic palpable mass located in the right inferotemporal orbit. Computed tomography, orbital pulsed-wave Doppler and internal carotid artery angiography consented diagnosis of high-vascularization mass probably related to arterious hemangioma with feeder vessel arising from a branch of ophthalmic artery. The orbital mass was surgically removed. Results: The histological examination showed mesenchimal tumor, CD34 positive, related to solitary fibrous tumor of the orbit. Conclusions: Solitary fibrous tumor of the orbit should be considered in the differential diagnosis of arterious hemangioma.

KEYWORDS:

• solitary fibrous tumor
• arterious hemangioma
• feeder vessel